Answer:
30 hours
Step-by-step explanation:
The equation we use is 1/15 + 1/x = 1/10. X being the amount of time it takes Ian alone. X works out to 30 hours which is the answer
The answer is
u = -15, hope this helps!
Answer:
i don't get the way you wrote it
Step-by-step explanation:
Answer:
x=95
Step-by-step explanation:
They are vertical angles
